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Leases - Right of use assets and lease liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Assets: |  |
Operating leases | $ 1,358 | $ 2,014
Lease receivable - current | 68 | 336
Lease receivable - noncurrent | 15 | 81
Total lease receivable | 83 | 417
Liabilities |  |
Current operating lease liabilities | $ 569 | $ 679
Current operating lease liabilities, Statement of Financial Position | Accounts payable and accrued expenses | Accounts payable and accrued expenses
Non-current operating lease liabilities | $ 821 | $ 1,390
Total operating lease liabilities | 1,390 | 2,069
Current finance lease liabilities | $ 47 | $ 274
Current finance lease liabilities, Statement of Financial Position | Accounts payable and accrued expenses | Accounts payable and accrued expenses
Non-current finance lease liabilities | $ 5 | $ 52
Non-current finance lease liabilities, Statement of Financial Position | Other noncurrent liabilities | Other noncurrent liabilities
Total finance lease liabilities | $ 52 | $ 326

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